Maintenance & Servicing; General Maintenance - Forney Easy Weld 20 P Manuel D'utilisation

Maintenance & Servicing

General Maintenance

DISCONNECT INPUT POWER CABLE (3) FROM THE ELECTRICAL OUTLET AND
WAIT FOR THE PLASMA TORCH (9) TO COOL BEFORE REMOVING THE SHIELD
CUP (E) OR PERFORMING MAINTENANCE.
CAUTION!
Maintenance can only be carried out on the unit if the person in charge of this operation has the
necessary technical knowledge and the correct tools. If this is not the case, contact your nearest service center.
CAUTION!
Never access inside the machine (panel removal) or touch the torch head (disassembly) without
having disconnected INPUT POWER CABLE.
ANY INSPECTION PERFORMED UNDER VOLTAGE INSIDE THE MACHINE OR
INSIDE THE PLASMA TORCH MAY CAUSE SEVERE ELECTRIC SHOCKS CAUSED BY
DIRECT CONTACT WITH PARTS UNDER VOLTAGE.
CAUTION!
Use only dry compressed air for cleaning. Do not point the jet of air at the electronic circuits
contained within this plasma cutting machine.
Your plasma cutting machine must routinely receive maintenance to keep the system in optimal working condition
and to provide long-term value for your investment. It is recommended to inspect the unit every 3-4 months
(depending on the frequency of use).
• Use compressed air to remove any dust deposits.
• The torch SHIELD CUP (E) and CUTTING TIP (D) should be periodically inspected for wear or damage.
• Replace the CUTTING TIP if the orifice becomes damaged or enlarged.
• If consumable surfaces are particularly oxidized, clean them with an extra fine abrasive.
• Replace the AIR DIFFUSER RING (C) if it is burned or cracked.
• Replace the ELECTRODE (B) when the crater on the end surface is approximately 1/16".
FAILURE TO MAINTAIN THE PLASMA CUTTING MACHINE, CONSUMABLES AND THE
WORKING ENVIRONMENT WILL DECREASE THE SYSTEM'S PERFORMANCE AND PRODUCE
RESULTS BELOW OPTIMAL PERFORMANCE LEVELS.
FREQUENCY
Each Use
Weekly
3 Months
6 Months
PERIODIC MAINTENANCE TO BE PERFORMED
• Check the indicator lights/LEDs and correct any fault
conditions.
• Check & clean SHIELD CUP, CUTTING TIP, AIR
DIFFUSER RING and ELECTRODE for proper installation,
wear, damage (burns, distortions or cracks), dirt, debris
and restricted holes.
• Verify the operation of the SHIELD CUP shut-down
system. (Remove SHIELD CUP and pull trigger. Pilot arc
should not start.)
• Check for and replace any cracked or damaged parts.
• Check the torch trigger guard for damage.
• Check TORCH BODY (A) and trigger for wear, exposed
wires or damage, replace as required.
• Check outer covering of all cables for wear, repair or
replace as required.
• Blow out or vacuum inside.
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